MAX3668EHJ+T Maxim Integrated Products, MAX3668EHJ+T Datasheet - Page 3

• Manufacturer Part Number: MAX3668EHJ+T
• Description: IC LSR DRVR 622MBPS 3.63V 32TQFP
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Driver (Fiber Optic)r

Specifications of MAX3668EHJ+T

• Data Rate: 622Mbps
• Number Of Channels: 1
• Voltage - Supply: 3.14 V ~ 5.5 V
• Current - Supply: 38mA
• Current - Modulation: 75mA
• Current - Bias: 80mA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC ELECTRICAL CHARACTERISTICS
(V
T
Figure 1. Required Input Signal and Output Polarity
Note 1: Characteristics at -40°C are guaranteed by design and characterization. Dice are tested at T
Note 2: Tested with R
Note 3: Both the bias and modulation currents will be disabled if any of the current set pins are shorted to ground.
Note 4: This assumes that the laser to monitor diode transfer function does not change with temperature.
Note 5: See Typical Operating Characteristics for worst-case distributions.
Note 6: AC characteristics are guaranteed by design and characterization.
Note 7: Total I
Note 8: Input signal is a 622Mbps, 2
Note 9: Input signal is a 622Mbps, 11110000 pattern.
Note 10:PWD = (wider pulse – narrower pulse) / 2.
A
Modulation Current Range
Modulation Off Current
Modulation Current Stability
Modulation Current Absolute
Accuracy
Output Rise/Fall Time
Jitter Generation (peak-to-peak)
Pulse-Width Distortion
(peak-to-peak)
Enable/Start-Up Delay
Maximum Consecutive Identical
Digits at 622Mbps
(DATA+) -
CC
= +25°C.) (Note 6)
(DATA-)
DATA+
DATA-
I
= +3.14V to +5.5V, load as shown in Figure 2, T
OUT
+
PARAMETER
Laser Driver with Automatic Power Control
MOD
out of OUT+. Refer to the Design Procedure for information regarding current delivered to the laser.
_______________________________________________________________________________________
MODSET
= 5.11kΩ (I
SYMBOL
I
13
t
MOD
CID
R/
- 1 PRBS with 80 inserted zeros.
t
F
MOD
(Note 7)
ENABLE = low (Note 3)
I
I
20% to 80%,
R
(Note 8)
(Notes 9, 10)
Open loop
≈ 38mA), R
MOD
MOD
L
200mVp-p MIN
1600mVp-p MAX
I
100mV MIN
800mV MAX
MOD
= 10Ω
= 75mA
= 5mA (Note 5)
A
+3.3V, 622Mbps SDH/SONET
= -40°C to +85°C, unless otherwise noted. Typical values are at V
| |
BIASMAX
20Ω load
CONDITIONS
= 4.56kΩ (I
Figure 2. Output Termination for Characterization
MAX3668
I
I
I
I
MOD
MOD
MOD
MOD
BIAS
= 5mA
= 75mA
= 5mA
= 75mA
OUT+
OUT-
BIAS
≈ 52mA), excluding I
20Ω
V
V
CC
20Ω
CC
15Ω
-620
MIN
-15
80
5
1.0µF
1.0µF
A
= +25°C only.
12.4Ω
BIAS
TYP
175
300
100
230
250
70
10
and I
10Ω
MOD
MAX
200
620
200
375
100
155
135
OSCILLOSCOPE
75
15
.
CC
= +3.3V,
ppm/°C
UNITS
50Ω
Bits
mA
µA
ps
ps
ps
ns
%
3